DIOF.CIA. 481 



4. Tttrandria. Trophia, Batis, and Hip- 

 pophae, t. 425, are good examples of this, 

 though Mr. Viborg is recorded by Schre- 

 ber to have occasionally found united 

 flowers intermixed with the barren ones in 

 the last-mentioned genus. If this be usual, 

 Hippophae must be removed to Folygamia 

 Dioec'ia. The rest of the Order appear to 

 have tlie accessory parts alike m both 

 flowers, as Visciim^ t. 1470. 



5. Pentandria, Humtdus, t. 427, is almost 

 the only certain ine^tancc here. Spinacia, 

 Acnkla and Cannabis would be unexcep- 

 tionable, but they are less absolutely dioe- 

 cious, being sometimes monoecious; see 

 p. 331. The rest of the Order is at best 

 doubtful; nor can the pretended amentum 

 of the barren-flowered Fisiacia entitle it 

 to a permanent place in this Class, for its 

 fructification is truly a panicle. Clutia, 

 more properly Cluj/tia, may possibly re- 

 main here. It has no business in the Or- 

 der Gynandria. 



6. Hexandria. No difference of structure is 



^ I 



